State materials used for LED's to emit different colour light.
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The material used for constructing LED determines itscolor. In other words, the wavelength or color of theemitted light depends on the forbidden gap or energy gap of the material. Gallium arsenideLEDs emit red and infrared light. Gallium phosphide LEDs emit red, yellow and green light.
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The material used for constructing LED determines itscolor. In other words, the wavelength or color of theemitted light depends on the forbidden gap or energy gap of the material. Gallium arsenideLEDs emit red and infrared light. Gallium phosphide LEDs emit red, yellow and green light.
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